Ok so idk how this happened, but I used some of my buddies preworkout called E.S.P. Extreme. There is 3 different levels of the pwo. 1 scoop=1 small scoop. 2 scoops=medium scoop. 3 scoops=large scoop. 3 scoops has about 500mg of caffeine so I'm like ok ima do 2 scoops. 20 minutes in, I'm feeling...